svn commit: r1616000 - /uima/sandbox/uima-ducc/trunk/uima-ducc-web/src/main/java/org/apache/uima/ducc/ws/server/nodeviz/NodeViz.java

[challngr]

Author: challngr
Date: Tue Aug  5 20:55:28 2014
New Revision: 1616000

URL: http://svn.apache.org/r1616000
Log:
UIMA-3900 Fix NPE when machines data returns null node.

Modified:
    
uima/sandbox/uima-ducc/trunk/uima-ducc-web/src/main/java/org/apache/uima/ducc/ws/server/nodeviz/NodeViz.java

Modified: 
uima/sandbox/uima-ducc/trunk/uima-ducc-web/src/main/java/org/apache/uima/ducc/ws/server/nodeviz/NodeViz.java
URL: 
http://svn.apache.org/viewvc/uima/sandbox/uima-ducc/trunk/uima-ducc-web/src/main/java/org/apache/uima/ducc/ws/server/nodeviz/NodeViz.java?rev=1616000&r1=1615999&r2=1616000&view=diff
==============================================================================
--- 
uima/sandbox/uima-ducc/trunk/uima-ducc-web/src/main/java/org/apache/uima/ducc/ws/server/nodeviz/NodeViz.java
 (original)
+++ 
uima/sandbox/uima-ducc/trunk/uima-ducc-web/src/main/java/org/apache/uima/ducc/ws/server/nodeviz/NodeViz.java
 Tue Aug  5 20:55:28 2014
@@ -247,8 +247,15 @@ public class NodeViz
             s = strip(s);
             if ( ! hosts.containsKey(s) ) {
                 // System.out.println("Set host from MachineInfo with key :" + 
s + ":");
-                VisualizedHost vh = new VisualizedHost(m.get(s), quantum);
-                hosts.put(s, vh);
+
+                // NOTE: the map changes all the time so the value may be 
gone.  This situation
+                //       will be fixed one day but for now just forget the 
node, it will show up 
+                //       next time we get here.
+                MachineInfo mi = m.get(s);
+                if ( mi != null ) {
+                    VisualizedHost vh = new VisualizedHost(mi, quantum);
+                    hosts.put(s, vh);
+                }
             }
         }